I can't speak for your specific example, but there are some theories that equate the massive technology leap we had in the 50s->present day has been due to reverse engineered alien technology.
In fact Star Trek: Voyager did a two part episode that used this conspiracy theory as part of the main story line.
I suppose "aliens" are a much more attractive explanation than "government-funded wartime R&D centers plus post-war prosperity plus Cold War arms race equals massive scientific advancement"
In fact Star Trek: Voyager did a two part episode that used this conspiracy theory as part of the main story line.